Katy Perry excited fans after revealing she is open to the possibility of collaborating with former rival Taylor Swift.

The Dark Horse hitmaker made the shock announcement during a red carpet interview with Entertainment Tonight at the iHeartRadio Music Awards on Thursday.

When asked about rumours that she might eventually make music with the Look What You Made Me Do songstress, Perry coyly suggested that collaboration was a possibility.

“I mean, I’m making music with Zedd, (so) I’m open,” she smiled.

Perry walked the red carpet alongside her 365 collaborator Zedd, dressed in the same android-style outfit she wore in the music video for their song.

Alluding to her guise, the DJ quipped that he had re-programmed her while the pair worked together.

“I programmed her to make music with anybody, it’s great,” he laughed, with Perry joking: “I’m a loveable AI.”

The duo reportedly fell out after three backing dancers left Swift’s Red Tour early to join Perry’s Prism trek in 2014.

In May 2018, the Swish Swish singer mailed Swift a literal olive branch to commemorate the opening night of her Reputation Stadium Tour, alongside a note referencing their past animosity and expressing her wish to move on.